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watchdog_timing_tests.h
1 /*
2  * Copyright (c) 2018-2019 Arm Limited and affiliates.
3  * SPDX-License-Identifier: Apache-2.0
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 /**
19  * @addtogroup hal_watchdog_tests
20  * @{
21  */
22 
23 #ifndef MBED_HAL_WATCHDOG_TIMING_TESTS_H
24 #define MBED_HAL_WATCHDOG_TIMING_TESTS_H
25 
26 #if DEVICE_WATCHDOG
27 
28 /** Test watchdog timing accuracy
29  *
30  * Phase 1.
31  * Given a watchdog timer started with a timeout value of X ms,
32  * when the time of X ms elapses,
33  * then the device is restarted by the watchdog.
34  *
35  * Phase 2.
36  * Given a device restarted by the watchdog timer,
37  * when the device receives time measurement T from the host,
38  * then X <= T < 2 * X.
39  */
40 template<uint32_t timeout_ms, uint32_t delta_ms>
41 void test_timing();
42 
43 /** Test Watchdog timeout
44  *
45  * Given a device with a Watchdog started,
46  * when the Watchdog timeout doesn't expire,
47  * then the device restart is not performed.
48  * When the Watchdog timeout does expire,
49  * then the device is restarted after the timeout and before twice the timeout value.
50  */
51 void test_timeout_lower_limit();
52 
53 #endif
54 
55 #endif
56 
57 /** @}*/
58 
test_timing
void test_timing()
Test watchdog timing accuracy.
test_timeout_lower_limit
void test_timeout_lower_limit()
Test Watchdog timeout.
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